Also fixed our build to define NDEBUG; code that
uses LLVM headers without NDEBUG is
binary-incompatible with libraries built with
NDEBUG.

llvm-svn: 107853

Optimize some vfp comparisons to integer ones. This patch implements the simplest case when the following conditions are met:
1. The arguments are f32.
2. The arguments are loads and they have no uses other than the comparison.
3. The comparison code is EQ or NE.

e.g.
        vldr.32 s0, [r1]
        vldr.32 s1, [r0]
        vcmpe.f32       s1, s0
        vmrs    apsr_nzcv, fpscr
	beq     LBB0_2
=>
        ldr     r1, [r1]
        ldr     r0, [r0]
        cmp     r0, r1
        beq     LBB0_2

More complicated cases will be implemented in subsequent patches.

llvm-svn: 107852

Add explicit testcases for tail calls within the same module.
Duplicate some code to humor those who think .w doesn't apply on ARM.
Leave this disabled on Thumb1, and add some comments explaining why it's hard
and won't gain much.

llvm-svn: 107851

Debug info intrinsics win for now.

llvm-svn: 107850

(if there are any) and use the one which remains available for the longest
rather than just using the first one. This should help enable better re-use
of the loaded frame index values. rdar://7318760

llvm-svn: 107847

address spaces when SRoA'ing memcpy's.

llvm-svn: 107846

llvm-svn: 107845

llvm-svn: 107844

was not producing a memcpy with the right address
spaces because of two places in it doing casts of
the arguments to i8, one of which that didn't
preserve the address space.

There is also an optimizer bug here.

llvm-svn: 107842

llvm-svn: 107841

prefer to materialize as local constants. This fixes the clang
bootstrap abort.

llvm-svn: 107840

llvm-svn: 107839

llvm-svn: 107838

breaking bootstrap on Linux.

llvm-svn: 107837

llvm-svn: 107836

Rip out the C++0x-specific handling of destructor names. The specification is still in flux and unclear, and our interim workaround was broken. Fixes PR7467.

llvm-svn: 107835

PR7399.  The asm parser already handles this.  This is of dubious 
utility (see the PR) but the asmprinter was clearly broken here.

llvm-svn: 107834

typedefs won't have the same canonical declaration (since they are
distinct), so we need to check for this case specifically. Fixes
<rdar://problem/8018262>.

llvm-svn: 107833

llvm-svn: 107832

llvm-svn: 107831

address calculation instructions leading up to a jump table when we're trying
to convert them into a TB[H] instruction in Thumb2. This realistically
shouldn't happen much, if at all, for well formed inputs, but it's more correct
to handle it. rdar://7387682

llvm-svn: 107830

llvm-svn: 107829

newly-narrowed scope. No functionality change.

llvm-svn: 107828

CXXConstructExpr/CXXTemporaryObjectExpr/CXXNewExpr as
appropriate. Fixes PR7556, and provides a slide codegen improvement
when copy-initializing a POD class type from a value-initialized
temporary. Previously, we weren't eliding the copy.

llvm-svn: 107827

llvm-svn: 107826

in the integrated assembler.  Still some discussion to be
done.

llvm-svn: 107825

llvm-svn: 107824

llvm-svn: 107823

Keep track of abstract subprogram DIEs. 

llvm-svn: 107822

llvm-svn: 107820

llvm-svn: 107818

llvm-svn: 107817

VisitFooTypeLoc() calls VisitFooType(); now, TraverseFooTypeLoc()
calls WalkUpFromFooType(). This allows clients that override
WalkUpFromFooType() to continue to work.  It also preserves the
property that Visit*() in the base visitor class is a no-op (s.t. a
subclass doesn't have to call Base::Visit*() when overriding
Visit*()).

Also fixes some typos in comments.
         
Also added a missing getDerived() inside
TraverseQualifiedTypeLoc(). The call is needed in case a subclass
overrides TraverseTypeLoc().

Reviewed by nlewycky and csilvers.

llvm-svn: 107816

didn't create a new block, don't reset the insert position.

llvm-svn: 107813

llvm-svn: 107812

llvm-svn: 107811

llvm-svn: 107810

This fixes PR7540.

llvm-svn: 107809

llvm-svn: 107808

llvm-svn: 107807